Working in 3D stereo in the 3D view - hardware requirements?
I had these problems with my internal Intel HD 4000. I wanted to use my laptops second GPU, an AMD Radeon HD 8790M. But unfortunately for this Dual GPU laptops you are dependant on your manufacturers driver support - so in the end it didn't work out for me.

I filed two Bug reports:


The first helped me to find out that the problem on my side is with the driver. The devs told me to use the opengl32.dll from http://download.blender.org/ftp/sergey/softwaregl/ and place it next to my blender.exe. That's only applicable for Windows though, but it showed me that the problem wasn't in Blender (as with this software render mode it worked really slow but fine).
The second one concluded in Dalai updating the manual mentioning the Triple Buffer:


  Multi-View drawing requires capable graphics card and drivers with Triple Buffer support. If the Automatic mode doesn’t work, set the Window Draw Method in the System User Preferences.



So for your case, I'd suggest, you'd try to figure out in general whether your 3D view is working under Windows with this OpenGL-Wrapper. And finally you have to make sure, your MacBooks graphics card supports Trible Buffer.
I was able to use the 3D Stereo View with my line interlaced Zalman Trimon ZM-M240W 3D Monitor in software mode (like a slideshow). But this has nothing directly to do with 120Hz or not - that's just needed for using Shutter Glasses. With a line interlaced Monitor you don't need this, it just halves your horizontal resolution (but you won't really notice this and the 3D effect outweighs this limitation!).

So in general it is working, but not unfortunately not with my manufactures dual GPU drivers. And I can imagine a similar problem exists for your MacBook that one of the key factors (TripleBuffer support) is missing.
The first step is to get 3D working with a MacBook in general (which I didn't hear of being possible yet) and after that you might try to setup Blender to show your Viewport or renderings in stereoscopic 3D.